An adjustable three-prong plug

By designing an adjustable component for the three-prong plug, the problem of mismatched size and spacing of traditional three-prong plugs was solved, achieving flexible plug adaptation and cost reduction.

CN224288694UActive Publication Date: 2026-05-26SHENZHEN HONGYUAN TAISHENG ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HONGYUAN TAISHENG ELECTRONIC TECH CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing three-prong plug has a fixed structure, which causes a mismatch in size and spacing between 10A and 16A plugs, resulting in difficulty in plugging and unplugging, poor contact or overload risk. Users need to replace the plug frequently, which increases costs.

Method used

Design an adjustable three-prong plug that adjusts the pin spacing through an adjustable component, including a protective housing, a sealing end plate, a spring clip, and a fixing block, to achieve adjustable pin connection.

Benefits of technology

It improves the compatibility of three-prong plugs, reduces usage costs, simplifies plug replacement operations, and reduces potential contact resistance risks.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model proposes an adjustable three-prong plug, belonging to the technical field of three-prong plugs. It includes a protective housing with a cavity inside. Two sets of grooves are symmetrically formed on the sidewall of the protective housing. An adjustment component is disposed within the protective housing, allowing adjustment of the distance between the first and second prongs. The adjustment component includes a sealing end plate installed within an opening at the end of the protective housing. Two sets of first insertion holes and a second insertion hole are formed on the surface of the sealing end plate. Multiple sets of elastic clips are symmetrically arranged along the edge of the sidewall of the sealing end plate. Multiple sets of fixing blocks are symmetrically installed on the inner wall of the protective housing. A limit frame is provided on the sidewall of the sealing end plate. This utility model, by incorporating an adjustment component, allows adjustment of the distance between the first and second prongs of the three-prong plug, improving the compatibility of the three-prong plug.
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